Biennial report (1988-90) for Tamworth Agricultural Research Centre [crop and pasture improvement; agronomy; soil fertility; plant nutrition; plant diseases; research; publications; New South Wales]

breeding methods cereales cereals crops cultivos enfermedades de las plantas ensayos de variedades escarda fertilidad del suelo grain legumes helicoverpa herbicidas herbicide herbicides insecticidas insecticide insecticides institution de recherche leguminosas de grano maladie des plantes new south wales nueva gales del sur nutrition des plantes pastizales pastures plant diseases plant nutrition plante de culture rendement rendimiento research institutions resistance to chemicals rouille roya rusts soil fertility trigo variety trials weed control wheats yields